/* Definitions for computing resource usage of specific insns.
Copyright (C) 1999, 2003, 2004 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING. If not, write to the Free
Software Foundation, 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA. */
#ifndefGCC_RESOURCE_H
#defineGCC_RESOURCE_H
#include"hard-reg-set.h"/* Macro to clear all resources. */
#defineCLEAR_RESOURCE(RES) \
do { (RES)->memory = (RES)->unch_memory = (RES)->volatil = (RES)->cc = 0; \
CLEAR_HARD_REG_SET ((RES)->regs); } while (0)
/* The resources used by a given insn. */struct resources
{
char memory; /* Insn sets or needs a memory location. */char unch_memory; /* Insn sets of needs a "unchanging" MEM. */char volatil; /* Insn sets or needs a volatile memory loc. */char cc; /* Insn sets or needs the condition codes. */
HARD_REG_SET regs; /* Which registers are set or needed. */
};
/* The kinds of rtl mark_*_resources will consider */enum mark_resource_type
{
MARK_SRC_DEST = 0,
MARK_SRC_DEST_CALL = 1
};
externvoidmark_target_live_regs (rtx, rtx, struct resources *);
externvoidmark_set_resources (rtx, struct resources *, int,
enum mark_resource_type);
externvoidmark_referenced_resources (rtx, struct resources *, int);
externvoidclear_hashed_info_for_insn (rtx);
externvoidincr_ticks_for_insn (rtx);
externvoidmark_end_of_function_resources (rtx, int);
externvoidinit_resource_info (rtx);
externvoidfree_resource_info (void);
#endif/* GCC_RESOURCE_H */